First & foremost, keep calm and have confidence. You have studied hard, and prepared well.

I did not find a single question outside of the BA Practitioners guide. Try to read it at minimum two-three times, depending on how clear you are in answering the mock questions. Get your BA foundation strong, you do not need to cram, just understanding the terms and terminology will do. Exam focuses lot on communication skills and collaboration, think from that perspective, as a BA what will you do? Do not forget the glossary; you will see few direct & indirect questions.

Lastly, practice mock questions as many times as possible, let not the score drop your confidence. I took the exam simulator from iZenBridge, and it helped well in strengthening the preparation.